Oil burner



N. HALE. olL BURNER. APPLICATION FILE JUNE 17. 1921.

Patented Sept. 12, 1922'.

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.. In l v l iii A Patented Sept. 12, 1922..

NOAH HALE, or onexirnivoeen, Tennessee, Assreivonfro. HENRY 'none ANDlHENRY riUnsT, Berner MEMPHIS, Tnnnnssnnaj t, Y

vori.l isniaivnn.v

Yiippiim'ion filed time 17, 192i,` seriai no. avente.4 i I' ing oil andis intended to be used primarily in cook stoves and ranges for cookingfood,

heating water and the like. It is an object of my' inventionto provideimproved means kitchen range.

Another object of my invention is the provision of improved .means forautomatically regulating the admission ofair in a `Xed ratio to theamount of oil vapor adlmitted to the burner.

A further Objectis to provide improved means for starting the burner.

Referring to the accompanying drawings.

which are made a part hereof and on which similar reference charactersyindicate vsimilar .v

parts,

Figure 1 is aside elevation of my im-r vproved device, v

Figure 2 a plan view thereof, and Figure wa section on lineB-B of Figure2. i

Fig. 4 starting burner.

Fig. 5 is a sectional .viewof 'the j et" noz- .z le of the startingburner.

In the drawings reference Characters 5 and '6 indicate y resiirectivelyvthe .upper andA lower members of the outer shell of the burner, thesemembers having outwardly eX- tending flanges connected by bolts 7 in theusual manner and provided with an asbesl' tos gasket 8 of usual forni toprevent leakage.

est points i-gnitionslots 9 lextending there# through, the upper marginsof the ridges acting as lips for theignition slots, and

the ribs being separated by transversexde-` pressions 10.

A baffle in the `*form ofy avliat plate 11 eX-` tends horizontallyacrossL the one chamber Y ofthe shell andis supported atvthe levelof'the joint between the members `5 and 6 by a reduced `flange engagingbetween them. This is ai side view ofa ymodifiedr form of The uppermember is `formed with ridges or ycorriigations having .at .their high--baffle vhasta' row of holes'12y at intervals run-l ,14 and a passage 15extending forwardfroin the pan. I have Vshowin the pan andthe the member5 though they 'n'i'ay' bef; formed separately and attached thereto:- A'`pe`rfo.

y y rated member -16 is inserted in the forward for heating waterin thewater back of a end ofpassage 15 and extends therefrom to 7o the forwardendof the burner. l'prefer to make this member of wire lscreen;thoughit'` may'gbe formed of' perforated sheet lmetal or otherwise. Y

At one side of the'meniber 5 1 attach thereto or"f ormyintegraltherewith a tray or receptacle 1 7 infvwhich-a loose mass kofas-`inember719under'pressure of fuel and keep the opening vfree from carbonand" dirti'at the saine time insuring proper spray and Acombustion offueldue -to itsup anddown and rotary movement'.` Preferably the coil isbent to atriangular shape as at 18' in Figure 4, as this increases theheating effect and' secures bettery vaporiZ-ation, IA flame l s -areader21 formed as' bent I platefto cover j 't ecoil'and having vdown'warclliyprojecting sides'to cause the flameto Vact onall sidesof the fmain coilrests at'itslo'wer edges on the tray rand eXtendsover"the` coil1'184 andis fastened tofan upwardly projecting ,flange 'of member 6 by a screw at22,. `Aiiyunvola--y tilizedoil' dripping from valve will be caught bythetray', which maybe provided with means for `draining /it,' 'if desired.

. Fuel maybe admitted fto the coil y18 `'from a pipe 23 by a valve 24having a knuilled head 24.` A second valve 25 having a knurled head l25is provided to admit liquid fuel' to the vaporizing coil 26 extendingfrom one end of the tol the 'other and back t 65 walls `of the passageasbein'g integral with i again. The latter valve leads to a small pipe27 which is connected by a vreducing elbow 28 to coil 26, and the coil26 at its opposite end is threaded to the stem of a 'l1- joint formingthe barrel of the rotary main spray-valve 29. The stem 3Q of this valvey extends through the body .29 and has threaded connection therewith at3l, and the conical forward end of the same engages a correspondinglytapered seat at 32 held in place by a flanged nut threaded on thebarrel. At the rear end of the valve body is a flanged nut 33 holding apacking in place about the valve stem 30 which has a knurled head 34k.The ceil 26 has within it a bundle of retarding filaments 26 whichgradually tapers from a bundle nearly filling the tube beneath the fiamespreader 2l to a single filament lying more or less near the fuel feedvalve 25. A similar bundle of filaments i3 or 43 is preferably used incoil 18 or 18 for a similar purpose.

An arm 35 extends at right angles to the stem of the valve 34 and isconnected by a link 36 to a pivoted cover 57 adapted when the valve isclosed to rest on the combined air intake and Catch-basin le; and as thevalve stem is turned to open the valve the cover is raised to admit moreair to the mixer. Downwardly extending projections 38 and 39 extendacross the low-ver member 5 and serve as supports for the entire device.

ln the operation of my vaporizing device liquid fuel is first pouredinto the tray 17 where it is taken up by the wick and may then be set onfire. After this has been lighted the valve 24 is opened to feed oil tothe coil by turning the knurled head 24eand the fuel. flows through thecoil and lifts up and rotates the corkscrew device 20. rlhc oil in thecoil will become vaporized by the heat and the'vapor passing through thevalve 19 will become ignited and the flame therefrom will be spread bythe spreader 2l over.

the coil 26. Before combustion has proceeded so far fuel will have beenadmitted to pipe 27 and'coil 26 by turning head 25 of valve 25 and thevaporizing coil 26 will be filled with liquid fuel except for the spaceoccupied by the filaments 26. Vaporisation 0f the fuel is assisted bythe heating of the filaments 26 to whichheat is conducted from thesurface of the coil. 26, the heat being carried back through the coil inthis manner for some distance to gradually warm the fuel and assist invaporization. When the coil 26 is sufiiciently heated the main sprayvalve is opened by turning the head 34 and this admits volatilized fuelto the passage l5 and at the same time lifts the cover 37 to admit airthereto. Any unvolatilized fuel admitted to the passage l5 will collectin the bottom of the same and in the catch-basin 14 from which it can bedrained olf in any convenient manner. The

heated spray of volatilized fuel passing forward 'through the passagewill go through the perforated tube 16 and rise therefrom. Part of thefuel will pass 'through openings l2 and part through the slot .l whichis made narrow at the front to cause some of the fuel to pass to therear. The general form and arrangement of the openings is well adaptedto distribute the fuel evenly under the entire surface of the member 6.As the fuel issues from the slots 9 it will burn uniformly over theupper surface of the device and will continue to heat and vaporize thefuel in the coil 26. lifter vaporization is well started in the coil 26the fuel is turned off from coil i8.

`When my device is to be used in connection with range having awater-back or front holes are drilled at et() at the lower ends of thegrooves l0, and at the proper side of the member 6 to give the desiredresults.

l may combine with the mechanically operated air valve an automaticallycontrolled valve as by providing one or more ope*- 'ngs ll in the rearwall 4of the pan ltwith a normally cl sed gate or gates d2. is the gasis turned on the draft will open the gates if suffi lient air is notsupplied by the valve 37. The link 36 may be arranged to unhook from eye35, if desired, so that only Vthe automatic valve will be in use, or thevalve 87 may be entirely omitted.

Having thus fully described my said invention, what l claim as new anddesire to sicure by Letters Patent, is:

l.. A burner comprising, an elongated lchamber having transverseignition slots at the tog, a perforated baflie plate dividing thechamber into upper and lower portions, a minutely perforated tube belowthe baffle V)late and means for admitting vaporized fuel to passsuccessively through said tube and baffle to the ignition slots,ysubstantially as setforth.

2. A' liquid fuel burner comprising, an elongated chamber havingtransverse lignition slots at the top, a perforated baffle platedividing the chamber into upper and lower portions, a tube of wirescreen beneath said baffle plate, and means for admitting vaporized fuelto pass successively through said tube and baffle to the ignition slots,sub st-antially as set forth.

3. A liquid fuel burner comprising an elongated chamber, a perforatedhorizontal baffle plate, an upper member above said plate havingtransverse ignition slots and transverse grooves between them andignition openings at the lower end of said grooves at one side of theburner, substantially as set forth.

4l. A. liquid fuel burner comprising an upper member having ignitionopenings, a vaporizing coil extending over said openings,

a valve to admitl fuel thereto, a valve to end of the auxiliary coil,each of said coils including a bundle of metallic filaments of varyinglengths so as to taper from the outlet end back toward the inlet end ofeach coil, substantially as set forth.

5. A liquid fuel burner comprising an upper member having ignitionopenings, a feed coil extending over said openings, a valve to admitfuel thereto, a valve to transmit vaporized fuel therefrom to theinterior of the burner, means for initially heating a portion of thecoil including a pan, an auxiliary triangular coil having one angleextending downward into the pan, a valve admitting fuel to the coil anda valve at the end of the coil for controlling the feed of fueltherefrom, substantially as set forth.

-6. A liquid fuel burner comprising an upper member having ignitionopenings, a feed coil extending over said openings, a rotary valve toadmit fuel thereto, a rotary valve to transmit vaporized fuel therefromto the interior of the burner, means for initially heating a portion ofthe coil including an auxiliary coil, a valve having a hollow sleeve anda plunger having at its lower end a corkscrew formation, said plungerbeing adapted to move up and down and also to rotate under the pressureof the fuel, substantially as set forth.

7 A liquid fuel burner comprising a heating surface, a feed pipe forminga coil over said surface and bent vertically downward at the outlet end,means for initially heating a portion of the coil including a flamespreader extending over a portion of the coil, heating means fbeneaththe spreader, and a bundle of looseincombustible filaments of varyinglengths in said coil extending from the locality of said flame spreadertoward the source of fuel, the bundle of filaments tapering from thelocality of the spreader toward the source of fuel, substantially as setforth.

8. A liquid fuel burner comprising a chamber for vaporized fuely and anignition surface above the chamber and communicating therewith,-meansfor supplying fuel to the chamber, a valve for controlling thesupply offuel to the chamber, a pan beneath the valve, said pan also forming apassageway for air, a cover for said pan regulating vthe passage of airand means for simultane ously operating said valve and said cover,substantially as set forth.

9. A liquid fuel burner comprising a chamber having ignition slots atythe top, a v y* transversebaffle in the chamber, an expansion coil abovethe chamber, a valve leading from the coil into the chamber, acatch-basin beneath the valve and having a bottom substantially on alevel with that of the chamber, a cover for the catch-basin serving asan air-valve and means to operate-said valves simultaneously,substantially as set forth.

In witness whereof, I have hereunto set my hand and seal at Chattanooga,Tennessee,

this 7th day of April, A. D. nineteen hundred and twenty-one.

NOAH `HALEl [1.. s]

Witnesses:

GEO. R. STILLMAN, C. E. KIRKrATRICK.

